Lesions entirely removed during stereotactic biopsy: Preoperative localization on the basis of mammographic landmarks and feasibility of freehand technique-initial experience

Seven patients with mammographic lesions entirely removed at percutaneous c ore needle biopsy that required wider excision underwent freehand localizat ion of the site of the prior lesion with orthogonal acid reproducible mammo graphic landmarks to guide needle placement. Successful excision was accomp lished in all cases, as evidenced by similar histopathologic findings, fibr in bands or collagen, and core needle biopsy tract at microscopy.